Misfire at crusing speed

randeyc

New Member
I have a misfire at cruising speed. It idles fine and pulls great on acceleration. But it misfires cruising at 40, 50 or 60mph. It has new plugs, HT wires, coils. I checked the igniters and they seem to be fine. I have checked the cam position sensors and they are within spec as well as the crank position sensor. Any help would be truly appreciated.
 
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